A141271 - OEIS

A141271 as a simple table

n	a(n)
1	1
2	1
3	2
4	2
5	3
6	4
7	4
8	5
9	7
10	8
11	10
12	12
13	13
14	16
15	19
16	21
17	25
18	29
19	32
20	38
21	44
22	49
23	56
24	63
25	70
26	80
27	90
28	99
29	112
30	125
31	138
32	155
33	172
34	189
35	210
36	232
37	254
38	282
39	310
40	338
41	373
42	409
43	446
44	490
45	534
46	580
47	636
48	691
49	749
50	818
51	887
52	960
53	1044
54	1129
55	1220
56	1323
57	1427
58	1539

[1,1,2,2,3,4,4,5,7,8,10,12,13,16,19,21,25,29,32, 38,44,49,56,63,70,80,90,99,112,125,138,155,172, 189,210,232,254,282,310,338,373,409,446,490,534, 580,636,691,749,818,887,960,1044,1129,1220,1323, 1427,1539]